Question

If (3,y) lies on the graph of y=-(2^x) then y =

Answer 1

just plug in 3 for x

y = -( 2^3 )
y = -( 8 )
y = -8

Answer 2

the value of y is -8 when x= 3

Explanation:

If (3,y) lies on the graph of y=-(2^x), we need to find out y

(3,y) is the given ordered pair , x=3

To find out y , we plug in 3 for x

y= -(2^x)

y= -(2^3)

y=-8

So the value of y is -8 when x= 3

(3,-8) lies on the graph of y =-(2^x)